Returns a polygon representing the data area of the TIN.
[Visual Basic .NET] Public Function GetDataArea ( _ ) As IPolygon
[C#] public IPolygon GetDataArea ( );
[C++] HRESULT GetDataArea( IPolygon** ppArea );
ParametersppArea [out, retval]
ppArea is a parameter of type IPolygon
Returns the data area of the TIN as a ZAware polygon. The data area is defined as the boundary between those triangles that are marked as 'inside' and those marked as 'outside'. It is the same thing as the interpolation zone.